Do you think I am addicted to my volunteer hobby as a Search Angel?

I am a Search Angel, I help families and friends reunite by finding them . I spend 25-40 hours a week finding postings by people trying to locate family and friends they have lost contact with then I conduct a search. I have helped over 225 people in the last two years. This takes up all my leisure time but I find it so rewarding.I usually search until 1:00am and have been known to leave the computer on next to my bed in case someone responds to an email I have sent, I am up at 6:30am to get ready for work. How do I know when it has gone past the hobby and into an obsession? BTW, if you know of anyone I can help have them send me a note at anneclark56@yahoo.com.